SHA1SUM(1) User Commands
NAME sha1sum - compute and check SHA1 message digest
SYNOPSIS sha1sum [OPTION] [FILE]…
DESCRIPTION Print or check SHA1 (160-bit) checksums. With no FILE, or when FILE is -, read standard input.
-b, --binary read in binary mode -c, --check read SHA1 sums from the FILEs and check them -t, --text read in text mode (default)
The following two options are useful only when verifying checksums: –status don’t output anything, status code shows success
-w, --warn warn about improperly formatted checksum lines --help display this help and exit --version output version information and exit The sums are computed as described in FIPS-180-1. When checking, the input should be a former output of this program. The default mode is to print a line with checksum, a character indicating type (‘*’ for binary, ‘ ’ for text), and name for each FILE.
AUTHOR Written by Ulrich Drepper, Scott Miller, and David Madore.
REPORTING BUGS Report bugs to firstname.lastname@example.org.
COPYRIGHT Copyright © 2006 Free Software Foundation, Inc. This is free software. You may redistribute copies of it under the terms of the GNU General Public License http://www.gnu.org/licenses/gpl.html. There is NO WARRANTY, to the extent permitted by law.
SEE ALSO The full documentation for sha1sum is maintained as a Texinfo manual. If the info and sha1sum programs are properly installed at your site, the command
info sha1sum should give you access to the complete manual.
sha1sum 5.97 January 2007